We have a preliminary finding that the latest stable version of Nodejs (v11.0) does not work properly with the nodetracker software.
At the present time we are recommending people who are experiencing nodetracker instability to downgrade their Nodejs version to v10.12.0.
To downgrade please run through the following:
sudo npm cache clean -f
sudo npm install -g n && sudo n 10.12.0
to confirm version 10.12.0
Once this has been performed please run
sudo systemctl restart zentracker
I would like to acknowledge Stanley, mds, and TheDarkSharman on Discord for their reports on this issue while I was sleeping.